Recent Developments in the Improvement of the Properties of Laser Clad Deposits
This paper reviews recent investigations carried out at Imperial College on two refinements to the process of Laser Cladding with pneumatic powder delivery. This cladding method, which involves blowing the cladding metal in powder form onto a moving molten weld pool created on the surface of the substrate, can be used to produce thick clad layers of more than 2mm depth. These thick layers sometimes suffer from porosity and cracking and the reduction in the density of cracking and the reduction in the density of such imperfections was the reason behind the experimental programs reported here.
KeywordsAcoustic Emission Weld Pool Ultrasonic Vibration Laser Cladding Clothe Layer
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- 1.J. Powell and W.M. Steen, “Vibro Laser Cladding”Google Scholar
- 2.Yu V. Kholopov and Uniieso, “Ultrasonic Treatment of Welded Joints in Metals to Relieve Residual Stresses”, Svar. Proiz. 1973, No 12, pp. 20–21Google Scholar
- 3.G.G. Saunders and R.A. Claxton, V.S.R. (Vibratory Stress Relief) - A current state of the art appraisal, Conf. Residual Stresses in Welded Construction and Their Effects, The Welding Institute, 1977, paper 29, pp. 173–183Google Scholar